Definition of "vestibular" []

• Of, relating to, or serving as a vestibule. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "These tests are designed to spot inner-ear problems (called vestibular dysfunction), which can throw off your sense of balance and make you dizzy."
• "These tests are designed to spot inner-ear problems called vestibular dysfunction, which can throw off your sense of balance and make you dizzy."
• "Other training sessions involve what's called a vestibular chair."